Tunneling & Cutting Tools

Performance underground starts with components built for the conditions.
FORMET supplies cutting, wear and replacement components for tunneling, mining and underground construction equipment. Products can be selected or engineered according to machine configuration, cutterhead geometry, geological conditions, rock characteristics, wear environment and operating loads.
Tunneling and cutting tools – TBM disc cutter for tunnel boring machines

Components for Demanding Underground Applications

FORMET supplies TBM cutting tools and wear parts for tunnel boring machines working in hard rock, mixed ground and soft ground: disc cutters and cutter rings, carbide cutting tools, rippers and scrapers, and replacement components for the cutterhead. Parts are matched to the machine interface and to the ground conditions reported for the drive.

TBM Cutting Tools: Applications & Grades

Choosing TBM cutting tools starts with information from the tunnel, not from a catalog: rock strength and abrasivity, cutterhead position, the machine make and model, and the wear pattern seen on the tools that are coming out. With that data the ring profile, carbide grade and hard-facing can be chosen for the ground rather than for an average case.For replacement parts, send the drawing, a used sample or the mating dimensions. Cutter housings, mounting blocks and wear plates are produced to verified geometry, so they fit the existing cutterhead without rework on site – where a stoppage costs far more than the part.Wear parts are easier to plan than emergencies. When the expected consumption of cutters and rings is estimated from the geology and the planned advance rate, replacement sets can be scheduled with the project so the right tools are on site before the machine needs them.

Our tunneling tools can be supplied with the documentation site teams need: specifications, material data and packing lists matched to the order. Clear identification on every crate helps the maintenance crew find the right part quickly during a planned stop, without sorting through parts underground, where every hour of downtime is expensive.

Multi-ring disc cutter with four cutting rings – TBM cutting tools – FORMET
Cutter ring with two rows of carbide button inserts
Red tricone roller bits with tungsten carbide inserts
Rock drilling bits: button, cross and chisel bits with carbide inserts
Twin disc cutter with two steel cutting rings
Conical roller cutter with rows of carbide button inserts
Single disc cutter with a steel cutting ring and shaft

contact us for your project

We combine technology with outstanding problem-solving experience to help our customers shape the future of their products.